1206_probst"Survivor" host Jeff Probst just walked down the aisle ... and his new bride is Mark-Paul Gosselaar's ex-wife!

toofab has confirmed Probst, 49, and Lisa Ann Russell, 40, got married Monday in L.A. No other details were immediately available.

This is the second marriage for both.

The two made headlines last year after Probst reportedly took Russell to the Creative Arts Emmys as his date just two months after she and her "Saved by the Bell" star ex-husband filed for divorce.

At the time of the split, Mark-Paul's rep said "They have been separated for a couple of months. There is no third party involved. They are working on their marriage."

Mark-Paul and Lisa have two kids together.

Gosselaar moved on quickly from the split too -- popping the question to girlfriend Catriona McGinn less than three months after his divorce from Lisa was finalized from.

Congrats to Jeff and Lisa!

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